From: Benjamin Romer <benjamin.romer@unisys.com>
Date: Fri, 5 Dec 2014 22:08:41 +0000 (-0500)
Subject: staging: unisys: add comment to spinlock in struct charqueue
X-Git-Url: http://drtracing.org/?a=commitdiff_plain;h=b0231f396e12a1c61c3f68538cab4dc67412b9bd;p=deliverable%2Flinux.git

staging: unisys: add comment to spinlock in struct charqueue

Add a comment to the charqueue's spinlock to explain that it is a lock for the
structure.

Signed-off-by: Ken Depro <kenneth.depro@unisys.com>
Signed-off-by: Benjamin Romer <benjamin.romer@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/staging/unisys/visorutil/charqueue.c b/drivers/staging/unisys/visorutil/charqueue.c
index 1ce7003c3a90..ac7acb7c5b79 100644
--- a/drivers/staging/unisys/visorutil/charqueue.c
+++ b/drivers/staging/unisys/visorutil/charqueue.c
@@ -28,7 +28,7 @@
 struct charqueue {
 	int alloc_size;
 	int nslots;
-	spinlock_t lock;
+	spinlock_t lock; /* read/write lock for this structure */
 	int head, tail;
 	unsigned char buf[0];
 };